package com.zysc.processflow.common.util;

import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.*;
import java.util.Map.Entry;

public class HttpUtils {
	URLConnection connection = null;

	public static String get(String httpUrl) {
		HttpURLConnection connection = null;
		InputStream is = null;
		BufferedReader br = null;
		StringBuffer result = new StringBuffer();
		try {
			// 创建连接
			URL url = new URL(httpUrl);
			connection = (HttpURLConnection) url.openConnection();
			// 设置请求方式
			connection.setRequestMethod("GET");
			// 设置连接超时时间
			connection.setConnectTimeout(15000);
			// 设置读取超时时间
			connection.setReadTimeout(15000);
			// 开始连接
			connection.connect();
			// 获取响应数据
			if (connection.getResponseCode() == 200) {
				// 获取返回的数据
				is = connection.getInputStream();
				if (is != null) {
					br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
					String temp = null;
					while ((temp = br.readLine()) != null) {
						result.append(temp);
					}
				}
			}
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (br != null) {
				try {
					br.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if (is != null) {
				try {
					is.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			connection.disconnect();// 关闭远程连接
		}
		return result.toString();
	}

	public static String doPost(String httpUrl, String param) {
		StringBuffer result = new StringBuffer();
		// 连接
		HttpURLConnection connection = null;
		OutputStream os = null;
		InputStream is = null;
		BufferedReader br = null;
		try {
			// 创建连接对象
			URL url = new URL(httpUrl);
			// 创建连接
			connection = (HttpURLConnection) url.openConnection();
			// 设置请求方法
			connection.setRequestMethod("POST");
			// 设置连接超时时间
			connection.setConnectTimeout(15000);
			// 设置读取超时时间
			connection.setReadTimeout(15000);
			// 设置是否可读取
			connection.setDoOutput(true);
			// 设置响应是否可读取
			connection.setDoInput(true);
			// 设置参数类型
			connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
			// 拼装参数
			if (param != null && !param.equals("")) {
				// 设置参数
				os = connection.getOutputStream();
				// 拼装参数
				os.write(param.getBytes("UTF-8"));
			}
			// 设置权限
			// 设置请求头等
			// 开启连接
			// connection.connect();
			// 读取响应
			if (connection.getResponseCode() == 200) {
				is = connection.getInputStream();
				if (is != null) {
					br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
					String temp = null;
					if ((temp = br.readLine()) != null) {
						result.append(temp);
					}
				}
			}
			// 关闭连接
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (br != null) {
				try {
					br.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if (os != null) {
				try {
					os.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if (is != null) {
				try {
					is.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			// 关闭连接
			connection.disconnect();
		}
		return result.toString();
	}

	public static String doPostJson(String httpUrl, String param) {
		StringBuffer result = new StringBuffer();
		// 连接
		HttpURLConnection connection = null;
		OutputStream os = null;
		InputStream is = null;
		BufferedReader br = null;
		try {
			// 创建连接对象
			URL url = new URL(httpUrl);
			// 创建连接
			connection = (HttpURLConnection) url.openConnection();
			// 设置请求方法
			connection.setRequestMethod("POST");
			// 设置连接超时时间
			connection.setConnectTimeout(15000);
			// 设置读取超时时间
			connection.setReadTimeout(15000);
			// 设置是否可读取
			connection.setDoOutput(true);
			// 设置响应是否可读取
			connection.setDoInput(true);
			// 设置参数类型
			connection.setRequestProperty("Content-Type", "application/json");
			// 拼装参数
			if (param != null && !param.equals("")) {
				// 设置参数
				os = connection.getOutputStream();
				// 拼装参数
				os.write(param.getBytes("UTF-8"));
			}
			// 设置权限
			// 设置请求头等
			// 开启连接
			// connection.connect();
			// 读取响应
			if (connection.getResponseCode() == 200) {
				is = connection.getInputStream();
				if (is != null) {
					br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
					String temp = null;
					if ((temp = br.readLine()) != null) {
						result.append(temp);
					}
				}
			}
			// 关闭连接
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (br != null) {
				try {
					br.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if (os != null) {
				try {
					os.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if (is != null) {
				try {
					is.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			// 关闭连接
			connection.disconnect();
		}
		return result.toString();
	}

	public  static String getByClient(String httpUrl) {
		CloseableHttpClient client = null;
		CloseableHttpResponse response = null;
		String result = "";
		 
		client = HttpClients.createDefault();
		HttpGet httpGet = new HttpGet(httpUrl);
		// 设置请求头信息，鉴权
//		httpGet.setHeader("contentType", "text/JSON; charset=utf-8");
		// 设置配置请求参数
		RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000)// 连接主机服务超时时间
				.setConnectionRequestTimeout(35000)// 请求超时时间
				.setSocketTimeout(60000)// 数据读取超时时间
				.build();
		// 为httpGet实例设置配置
		httpGet.setConfig(requestConfig);
		// 执行get请求得到返回对象
		try {
			response = client.execute(httpGet);
			HttpEntity entity = response.getEntity();
			result = EntityUtils.toString(entity);
		} catch (ClientProtocolException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			// 关闭资源
            if (null != response) {
                try {
                	response.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != client) {
                try {
                	client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
		}
		return result;
	}

	public static String postByClient(String url, Map<String, Object> paramMap) {
        CloseableHttpClient httpClient = null;
        CloseableHttpResponse httpResponse = null;
        String result = "";
        // 创建httpClient实例
        httpClient = HttpClients.createDefault();
        // 创建httpPost远程连接实例
        HttpPost httpPost = new HttpPost(url);
        // 配置请求参数实例
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000)// 设置连接主机服务超时时间
                .setConnectionRequestTimeout(35000)// 设置连接请求超时时间
                .setSocketTimeout(60000)// 设置读取数据连接超时时间
                .build();
        // 为httpPost实例设置配置
        httpPost.setConfig(requestConfig);
        // 设置请求头
        httpPost.addHeader("Content-Type", "application/x-www-form-urlencoded");
        // 封装post请求参数
        if (null != paramMap && paramMap.size() > 0) {
            List<NameValuePair> nvps = new ArrayList<NameValuePair>();
            // 通过map集成entrySet方法获取entity
            Set<Entry<String, Object>> entrySet = paramMap.entrySet();
            // 循环遍历，获取迭代器
            Iterator<Entry<String, Object>> iterator = entrySet.iterator();
            while (iterator.hasNext()) {
                Entry<String, Object> mapEntry = iterator.next();
                nvps.add(new BasicNameValuePair(mapEntry.getKey(), mapEntry.getValue().toString()));
            }

            // 为httpPost设置封装好的请求参数
            try {
                httpPost.setEntity(new UrlEncodedFormEntity(nvps, "UTF-8"));
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }
        try {
            // httpClient对象执行post请求,并返回响应参数对象
            httpResponse = httpClient.execute(httpPost);
            // 从响应对象中获取响应内容
            HttpEntity entity = httpResponse.getEntity();
            result = EntityUtils.toString(entity);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 关闭资源
            if (null != httpResponse) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return result;
    }

}
